phy_get_manual_rx_polarity(9)

💅 phy_get_manual_rx_polarity — a Kernel API Manual moment

okay bestie, gather round, because today we're looking at phy_get_manual_rx_polarity, and honestly? she's a little niche but she's doing her job and we respect her for it. This one lives in the Kernel API Manual, and yes, the function name is a whole mouthful — we're getting through it together, no cap.

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✨ NAME ✨

phy_get_manual_rx_polarity — get the manual RX polarity for a PHY differential lane 🎀

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🌸 SYNOPSIS 🌸

int phy_get_manual_rx_polarity(struct fwnode_handle *fwnode, const char *mode_name, unsigned int *val);

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🦋 ARGUMENTS 🦋

• fwnode — a pointer to the PHY's firmware node, iconic, essential, literally the source of truth for this whole operation 💖
• mode_name — the name of the PHY mode you're looking up. yes, you gotta tell her which mode, she's not a mind reader 🙈
• val — a pointer to where the returned polarity goes. you bring the storage, she brings the value, teamwork fr fr 🫶

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⭐ DESCRIPTION ⭐

so here's the vibe: this is a helper for PHYs that do not support protocols with automatic RX polarity detection and correction. meaning? no autopilot for them 😭 — the polarity has to come from somewhere manual, and that's exactly what this function goes and gets for you. lowkey essential for those PHYs, highkey a lifesaver 💀✨

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🔥 RETURN 🔥

• zero on success 🎉 (slay)
• a negative error on failure 💔

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/phy/phy-common-props.c
• fwnode_get_u32_prop_for_name(9)
• phy_get_rx_polarity(9)
• phy_get_tx_polarity(9)
• phy_get_manual_tx_polarity(9)

the whole friend group, honestly 👑 go read them too, iykyk.

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okay that's the whole page, you ate that 💅 no invented options, no missing flags, just the facts with a little glitter on top 🧚

and that's a wrap, bestie! this one came to you from ./drivers/phy, dated October 2026 — go forth and get your manual RX polarity the correct way, periodt 🌟🍓💜